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Finding the Fourth Proportional to 67,561.75, 101,342.63 and 18,313.75

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Solution

The fourth proportional to 67,561.75, 101,342.63 and 18,313.75 is: 27,470.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,561.75 : 101,342.63 = 18,313.75 : x
  2. Step 2: Convert to fraction form
    67,561.75/101,342.63 = 18,313.75/x
  3. Step 3: Cross multiply
    67,561.75x = 101,342.63 × 18,313.75
  4. Step 4: Simplify right side
    67,561.75x = 1,855,963,590.16
  5. Step 5: Solve for x
    x = 1,855,963,590.16/67,561.75
  6. Step 6: Final answer
    x = 27,470.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.